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应用赤眼蜂防治玉米螟安全有效,省工,成本低,无残毒,是保护生态平衡的一项措施。实践证明,大面积释放赤眼蜂防治玉米螟可起到控制一代螟、压低二代螟的作用。但在玉米螟发生偏重的年份,在利用赤眼蜂防治一代暝以后,二代螟仍有较重为害。所以在放蜂防治一代玉米螟的基础上,再次放蜂防治二代螟是十分必要的。本文介绍的防治方法及效果,供各地参考。
The application of Trichogramma ostriniae to prevent and control the corn borer is safe and effective, which saves labor, low cost and no residue. It is a measure to protect the ecological balance. Practice has proved that large-scale release Trichogramma ostriniae can control the generation of red borers, the role of the second generation of rice borer. However, in the year when the corn borer is prevalent, the second-generation borer is still severely damaged after the first generation of red-bellied bee is used to control it. Therefore, in the prevention and treatment of the first generation of corn borer bee on the basis of the second time to prevent beekeeping control bee is necessary. This article describes the prevention and treatment methods and effects for reference.